Bumbo and activity centres

I bought baby a bumbo. A bumbo is a strange little chair that baby sits in. Its recommended for use four months and up, we have been using it since G was about 6 weeks as she had good head control. Now at 3 months old, I'm not sure how much longer it will last her as her chubby legs are getting stuck already! It is convenient when we are making dinner and I pop her on the table in her bumbo so she can interact with us (under strict supervision of course).

My mum had previously gave us some big toys, I had no idea what they were and was a bit worried about all this stuff she was giving us. We popped it away in storage and I kinda forgot about them. Fast forward to bubby being three months old, I saw my friends baby in an activity centre and realized I needed one of them! I started shopping around and realized they were actually quite expensive! Then I thought hang on a second I think my mum might of given us one - whoops :-), sure enough there was an activity centre. We popped her in it and she seems to like it, she is still a bit little for it though. It's such a shame that we don't live in a major city as when I checked gumtree, there are heaps that are so cheap: http://www.gumtree.com.au/s-sydney/baby+activity+centre/k0l3003435.
If your looking to buy new, deals direct have a really wide selection:http://www.dealsdirect.com.au/c/baby-1/play-gyms-activity-centres/.
We also have a jolly jumper that was lent to us, these are relatively cheap - $50 and you put it up in a door Fran, you can buy the music may as well for $30. The JJ has a stand you can purchase so you don't have to use a door frame, but it's $100 so I would rather buy another activity centre then purchase that. Little G is still to little for the JJ but we will pop her in for little bits so she can have a go of it.